Ecosystem 2

Which of the following is a herbivore?

• cow

• lion

• bear

• grass

Which of the following describes a producer?

• herbivore

• carnivore

• plant

• animal

Humans are affecting the balance of carbon cycle by

• burning fossil fuels

• using carbon

• using fertilizers

• replanting trees

Which type of consumer eats plants?

• Primary consumer

• Secondary consumer

• Tertiary consumer

Which of the following describes a decomposer?

• Organisms that eat carnivores

• Organisms that eat dead animals and plants

• Organisms that eat primary consumers

Which of the following helps fix nitrogen to make it usable in an ecosystem?

• Humans

• Animals

• Bacteria

• Plants

How do decomposers help keep the carbon cycle going?

• by eating carbon

• by releasing oxygen

• by breaking down producers and consumers and returning carbon to soil

Which of the following is NOT an impact humans have on the carbon cycle?

• Driving cars

• Clearing forests

• Factory pollution

• Eating producers and consumers

What are omnivores?

• Plant eaters

• Meat eaters

• meat and plant eaters

A lion is an example of which type of consumer?

• Primary consumer

• Tertiary consumer

• Secondary consumer

• Decomposer